Brother FAX100 Service Manual page 72

Image related
If the received or sent image has any trouble, first make a copy with the facsimile equipment.
If the copied image is normal, the remote terminal is defective. If it is abnormal, proceed to
the troubleshooting list given below:
Trouble
(1) All white images.
[At scanning side]
[At recording side]
(2) Image has white
vertical streaks.
[At scanning side]
[At recording side]
(3) All black images.
[At scanning side]
[At recording side]
(4) Image has black
vertical streaks.
[At scanning side]
[At recording side]
• Check the harnesses between the main PCB and CCD & lens
holder ASSY.
• Check the main PCB.
• Check the main-head harness between the main PCB and the
recording head.
• Check the NCU-head harness between the NCU PCB and the
recording head.
• Check that the compression springs beneath the recording head
are set in place.
• Check the main PCB.
• Check the recording head.
• Check the CCD & lens holder ASSY.
• Check the recording head.
• Check the interfaces between the main PCB, NCU PCB, and
CCD & lens holder ASSY.
• Check the LED harness.
• Check the LED array.
• Check the main PCB.
• Check the main PCB.
• Check the recording head.
• Check the CCD & lens holder ASSY.
• Check the recording head.
V – 20
Action to be taken